I would like to know the fastest way to dig up a chunk-sized area on the tablet in Vanilla Minecraft?

I would like to know the fastest way to dig up a chunk-sized area on the tablet in Vanilla Minecraft?

With / fill the coordinates and then as a block air

Do you know how I can do it quickly without orders or by dismantling?

What do you already have? Beacon?

Or do you start from scratch?

Almost only have iron tools

Well then… Just take it down. There's no trick to be faster. Make lots of iron picks, stand for 3 hours, and mine the chunk.

TNT-Duper would probably be. Another idea, not sure if it works on the tablet.