Gold Can Be Electrochemically "Plated" onto a Less Expensive Metal $\rarr$

question 80

Multiple Choice

Gold can be electrochemically "plated" onto a less expensive metal by submerging the object in a solution of gold(III) and applying an electric current to drive the following half-reaction: Au³⁺ + 3e^- $\rarr$ Au(s)
How many grams of gold will be formed if a current of 2.37 A is applied for 71 minutes

• A) 7.3 g
• B) 7.1 g
• C) 6.9 g
• D) 6.7 g
• E) None of the above

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