Two Parallel Plates That Are Initially Uncharged Are Separated By 1.7

Multiple Choice

Two parallel plates that are initially uncharged are separated by $1.7 \mathrm {~mm}$ , have only air between them, and each have surface areas of $16 \mathrm {~cm} ^ { 2 }$ . How much charge must be transferred from one plate to the other if $1.9 \mathrm {~J}$ of energy are to be stored in the plates? $\left( \varepsilon _ { 0 } = 8.85 \times 10 ^ { - 12 } \mathrm { C } 2 / \mathrm { N } \cdot \mathrm { m } ^ { 2 } \right)$

A) $0.60 \mathrm { mC }$
B) $4.0 \mu \mathrm { C }$
C) $8.0 \mu \mathrm { C }$
D) $5.6 \mu \mathrm { C }$