When an electric current is passed through a copper chloride solution, electrolysis occurs. Electrolysis is the process by which an electric current causes a chemical change. In the case of copper chloride, the electric current causes the copper ions (Cu2+) to be reduced to copper metal (Cu), and the chloride ions (Cl-) to be oxidized to chlorine gas (Cl2).

The half-reactions for this process are:

* Cathode (reduction): Cu2+ + 2e- → Cu

* Anode (oxidation): 2Cl- → Cl2 + 2e-

The overall reaction is:

* CuCl2 → Cu + Cl2

The products of electrolysis are copper metal and chlorine gas. Copper metal is deposited on the cathode, and chlorine gas is evolved at the anode. The amount of copper metal and chlorine gas produced is proportional to the amount of electric current that is passed through the solution.

Electrolysis of copper chloride is used in a number of industrial processes, including the refining of copper and the production of chlorine gas.