what is the current flow created by the capacitor if it discharges every .1 s across a potential difference of?

The definition of a farad is the amount of capacitance that will hold a charge of
one coulomb with a potential difference of one volt. So the charge Q = C times V
where C is the capacity in farads and V the potential difference in volts.
If the capacitor is charged to full capacity and has a capacitance of 100 * 10**-12 F
or 100 picofarad, 5 volts will charge it fully to 5 picocoulombs (pQ). If it discharges
its 5 pQ in 0.1 second, that produces a current flow of 5 picocoulombs 10 times per
second, totaling 50 pQ per second. Since one ampere is defined as 1 coulomb per
second, the resulting current flow from this capacitor is 50 picoamperes (pA).