How many ounces of urine should I be producing daily?

No need to measure. If you have no health problems there is no need to measure your urine, mantaining a good water intake prevents dehydration specially in summer.The amount of urine you make will depend on how much you loose through sweat and stools.Your kidney is a good sensor and will maintain water balance.
Depends . Depends on your intake. You should have more than 50oz of output to maintain adequate hydration. .