How to assign an ACL for each S3 Bucket in a tuple/list using Terraform?

I have a terraform file set to create a list of S3 buckets, and I was assigning acl to each bucket the old way:

resource "aws_s3_bucket" "this" {    count = length(var.s3_bucket_names)    bucket = var.s3_bucket_names[count.index]    acl = var.acl    tags = var.tags}

However, I want to know how to do it using aws_s3_bucket_acl but I can't reference the bucket because it is a tuple and not a string. I've tried a lot of things but I've got nothing so far.

This is what I want to do:

resource "aws_s3_bucket_acl" "this_acl" {    bucket = HERE I DON'T KNOW HOW TO REFERENCE A TUPLE OR LIST    acl = var.acl}

What should I do to reference a tuple since aws_s3_bucket.this.*.id doesn't work with a tuple/list?

Thank you in advance.