In the electrolysis of CuSO4(aq) using copper electrodes, the reaction at the anode is

In the electrolysis of CuSO_4(aq) using copper electrodes, the reaction at the anode is

Answer Details

During the electrolysis of copper sulfate (CuSO₄), the copper anode loses mass as copper atoms are oxidized to form copper ions that enter the solution. This means that the reaction at the anode is the dissolution of the copper electrode. Therefore, the correct option is "dissolution of copper electrode."