A 1 -megabit computer memory chip contains many $60.0 \times$ $10^{-15}-\mathrm{F}$ capacitors. Each capacitor has a plate area of $21.0 \times$ $10^{-12} \mathrm{m}^{2}$ . Determine the plate separation of such a capacitor. (Assume a parallel-plate configuration.) The diameter of an atom is on the order of $10^{-10} \mathrm{m}=1$ A. Express the plate separation in angstroms.