Modern electroplaters can cover a surface area of 60.0 m² with one troy ounce of gold (volume = 1.611 cm³).What is the thickness of the electroplated gold? A) 2.69 × 10−⁸ m B) 1.35 × 10−⁹ m C) 1.79 × 10−⁶ m D) 5.38 × 10−⁷ m E) None of the above

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Quizplus · Accepted Answer

The volume of gold is 1.611 cm³, which is equal to 1.611 x 10^-6 m³. The surface area covered is 60.0 m². Therefore, the thickness of the gold is 1.611 x 10^-6 m³ / 60.0 m² = 2.69 x 10^-8 m.

Modern Electroplaters Can Cover a Surface Area of 60