The diagram shows a metallic fork electroplated using silver (silver anode, fork cathode, aqueous silver sulphate). 0.54 g of silver was deposited on the surface of the fork. The cathode reaction is Ag⁺(aq) + e⁻ → Ag(s). (1 Faraday = 96 500 C; Ar of Ag = 108)

1. aExplain the term electroplating. [1]
2. bSuggest one reason why many metallic objects used in the home are electroplated. [1]
3. cCalculate the charge in coulombs required to deposit 0.54 g of silver. [2]
4. dIf a current of 2.5 A was used, calculate the time taken to deposit 0.54 g of silver. [2]
5. eWrite the equation for the reaction taking place at the anode. [1]

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