A cylindrical jelly jar is 5 inches across the top and about 10 inches high. How many cubic inches of jelly could it hold (Use 3.14 for z as needed. Round to the nearest hundredth)?

The radius of the top of the jar is 5/2 = <<5/2=2.5>>2.5 inches.

The volume of the jar is (pi)*2.5^2*10 = 196.25 cubic inches. Answer: \boxed{196.25}.