What is Electroplating?
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Electroplating is the coating of an object with a metal. ... The metal bar dissolves in the solution and plates out on the object, forming a thin but durable coating of metal. It is often used to gold-plate objects for decoration or to stop corrosion.
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Electroplating is done when you wish to protect a more expensive metal by coating it with a less expensive metal.
The less expensive metal thus forms a layer over the expensive metal article and it protects the inner layer from corroding.
Thus corrosion can be prevented.
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