0.25oz
The What's Cooking America web site has a page on 'Chile Peppers'(sic) that displays many types of peppers and a choice of recipes suitable for each one.
They are used to spice-up many dishes found throughout the region.
Assuming that "chili" peppers is meant here: according to Wikipedia there are actually just four or five different main species of cultivated chili peppers. But these main species are then diversified in several different sub species.
That is 9 tablespoons
There are 33 tablespoons in 33 tablespoons.
One serrano pepper, when chopped, typically yields about 1 to 2 tablespoons, depending on its size. Smaller peppers will generally produce closer to 1 tablespoon, while larger ones can provide up to 2 tablespoons. If you're measuring for a recipe, it's best to chop the pepper and measure it directly for accuracy.
That is 4 tablespoons.
That is 8.333 tablespoons.
That is 20 tablespoons.
That is 12.346 tablespoons.
That is 9.312 tablespoons