Copper Is Electroplated from an Aqueous CuSO₄ Solution

question 77

Multiple Choice

Copper is electroplated from an aqueous CuSO₄ solution. A constant current of 5.42 amp is applied by an external power supply. How long will it take to deposit 4.06  10² g of Cu? The atomic mass of copper is 63.546 g/mol.

• A) 31.6 h
• B) 94.8 h
• C) 2.58 h
• D) 63.2 h
• E) 126.4 h

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Definitions:

Discount Rate

The rate of interest utilized to calculate the current value of future cash flows in a discounted cash flow assessment.

Incremental Net Income

The additional net income that results from a specific business decision compared to an alternative.

Working Capital

Current assets minus current liabilities, indicating the liquidity available for a company's day-to-day operations.

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The portion of income subject to taxation by governmental authorities after accounting for deductions and exemptions.