When electric current passes through the cell. Metal ions in solution with water to a higher voltage electrons from the object (specimen) is connected to the negative terminal of the generator or cathode. A coated metal atoms on the surface of the object to be plated. Meanwhile, the metal cathode or anode, oxidation reaction of the dissolved metal ions in solution. To compensate for the metal ions to the metal atoms, while plating. The anode is corroded away The metal cathode will come up.
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