PURIFICATION OF METAL
Impure metals containing impurities can be purified using electrolysis where the impure metal is used as the anode and a piece of metal is used as the cathode. the electrolyte is a solution containing the ions of the metal to be purified.
Purification of copper
Pure copper and silver can be obtained through the process of electrolysis. The impure copper is made to be anode while the cathode is a thin layer of pure copper.