Duplicating attachments within same table or within the same base (diff tables) - Counts towards storage space?

I wonder if copying the attachments within the same table from one field to another field will add to the storage space consumed? Or copying the attachment from one table to another one (that is with the same base)?

I like to have same image visible in two attachment fields.

I think the copying process can be automated by getting the 1st image link from the attachment field and then have that uploaded using Airtable automation to the cover image field. I don’t think there is another way to do that.

Wanted to check if this won’t consume additional storage space if I do that using the automation… versus if I manually copy past the images from one attachment field into another one.