Which of the following statements about the electrolysis of CuSO4(aq) using copper cathode and platinum anode is not correct?

Question 1 Report

Which of the following statements about the electrolysis of CuSO_4(aq) using copper cathode and platinum anode is not correct?

Copper is deposited at the cathode

Oxygen is liberated at the anode

it is used for the purification of copper

The solution becomes acidic