18. ELECTROPLATING Copper Gold Gold ions, Au + DC -ve +ve The metal to be coated is at the NEGATIVE terminal POSITIVE ions of the OTHER METAL are in the solution These ions are attracted to the negative terminal, and when they meet it turn into atoms So the copper is coated in gold atoms Write an ion-electron equation for the reaction occurring at the negative electrode Is this oxidation or reduction? Check-test 12.2 ext.