Will copying the campaign transfer the sales history data as well?

Yes, if you copy a campaign all the data will be transferred as well along with sales history, copying campaign will copy everything simply.

You can copy a campaign and all the data will be copied along with the sales history.

Targeting type and ad group settings are included in the copy. When you copy a campaign you don’t have the option to switch between automatic and manual targeting, or between keyword targeting and product attribute targeting. Performance history isn’t carried over to the copied campaign, and archived ad groups, targets, and advertised products won’t be copied.

The data will be copied together with the sales history if you copy a campaign, so you can be sure that everything will be done as promised.

You can copy the campaign and all the data will copy except sale history data and performance setting, you can copy the campaign for same marketplace or for other marketplaces.

Yes, it will copy all your data from that campaign.

A campaign can be copied, and all its data will be copied along with its sales history.

When you copy a campaign, the new campaign will have the same targeting, bid strategy, and budget as the original campaign, but the performance data, such as the number of impressions, clicks and conversions will be different.
It’s important to keep in mind that copying a campaign does not copy the performance data, and the new campaign will start with zero performance data. You will have to monitor the new campaign performance separately.