How many grams of copper could be plated out on a serving tray by electrolysis of a solution containing copper in +2 oxidation state for a period of 8.0 h at a current of 8.46 A? What is the area of the tray, if the thickness of the copper plating is 0.00254 cm? Density of copper is `10.5 g//cm^(3)`.

Explanation

To solve the problem step by step, we will first calculate the mass of copper that can be plated out and then determine the area of the tray based on the thickness of the copper plating.

### Step 1: Calculate the total charge (Q) used in electrolysis
The formula to calculate charge is:
\[ Q = I \times t \]
Where:
- \( I \) = current in amperes (A)
- \( t \) = time in seconds (s)
...