Grated coconut.
A mature coconut should yield about 12 oz of copra (coconut meat) after shelling and peeling off the brown backing. This is equivalent to about 4 oz dried coconut. Dried grated coconut runs about 4 oz to one cup lightly packed so a whole coconut will be about 1 cup of dried grated coconut. So if an Indian recipe calls for "1/2 dried coconut grated", figure about 2 oz of dried grated coconut or 6 oz of fresh.
The item for grating coconuts is called mbuzi (also the word for goat). It is serrated iron tip in an oval shape fitted into a board that a person can sit on while turning the coconut on the steel.. The coconut meat is grated into a bowl. People usually then put the grated coconut in a cloth to squeeze the milk out. The remaining grated coconut is often discarded.
4.5 per tablespoon
Giant supermarket in Waldorf Maryland.
I spent 3 months exploring the islands of French Polynesia, and they used a metal piece attached to a board to grate coconut, which they then soaked in the coconut water to make coconut milk. My understanding is that Coconut Rappe is grated coconut.