Question

Electrolysis of copper sulphate with carbon rod and copper rod

Answer 1

When Copper(II) sulphate is electrolysed with a copper anode electrode (the cathode can be carbon or copper), the copper deposit on the cathode (–) equals the copper dissolves at the anode (+). Therefore the blue colour of the Cu2+ ions stays constant because Cu deposited = Cu dissolved.

Answer 2

The cu are extracted by electrolytic reduction method. Here's the that shows the whole process of highly reactice metal such as Cooper