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Chemistry · L4 · How electroplating works (an electrolytic cell)

Process flow for electroplating: an external power source forces metal ions to reduce and deposit onto the object being plated — the definitive electrolytic-cell example.

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External DCpower sourceAnode: sacrificial metaloxidised: Ag → Ag+ + e-Cathode: object to platereduction: Ag+ + e- → AgElectrolyte bath(metal ions in solution)Object gains a thin,even metal coating+ terminal− terminalmetal ions dissolve into solutionions migrate to cathode surface

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