Find the number of coins, \( 1.5 \mathrm{~cm} \) in diameter and \( 0.2 \mathrm{~cm} \) thick to...

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Find the number of coins, \( 1.5 \mathrm{~cm} \) in diameter and \( 0.2 \mathrm{~cm} \) thick to be melted to form a right circular cylinder of height \( 10 \mathrm{~cm} \) and diameter \( 4.5 \mathrm{~cm} \).
a. 280
b. 400
c. 450
d. 500
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