Question

Explain the process of electroplating when both electrodes are of copper

Answer 1

Explanation:

Electroplating

The most common application of electrolysis is electroplating. Electroplating is a process of coating one metal with another using an electric current. In this process, there exists an electrolyte, through which current passes. Two electrodes are inserted in the electrolyte and are connected to the terminals of a battery with a switch in between. The metal to be used for coating is chosen as the anode and the object to be electroplated is chosen as the cathode. The electrolyte is a salt of the anode metal which gets dissociated into its respective ions. The positive ions are called cations, and the negative ions are called anions. The current in the solution is due to the flow of these ions. The anions move towards the anode, and the cations move towards the cathode. The cations are converted into atoms at the cathode and form a layer on it, which we call electroplating. To compensate for the loss of ions in the solution, the atoms of the anode dissociate into the solution, forming the ions. When electric current passes through the circuit for 20-25 minutes, the metal from the anode gets deposited on the cathode.

Gold plating is one of the most common applications of electroplating in ornament-making.

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Answer 2

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• Electroplating is a process that uses an electric current to reduce dissolved metal cations so that they form a thin coherent metal coating on an electrode. ... The process used in electroplating is called electrodeposition. It is analogous to a concentration cell acting in reverse.

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